The judges acknowledged Anya's show was far more one note, but also unlike Viktor and Josh's sometimes disconnected hills and valleys, Anya's showing was cohesive. She was said to have a more unique point of view, definitive enough that MK could see an Anya jewelry, an Anya shoe, an Anya bed, thus the potential to have a serious business and a serious following..
The judges selection of Project Runway's winner has always been subjective, where talent is also weighed against the other major considerations, such as, 'is the designer ready' and 'is the designer capable of being successful?' Clearly, for this season, judges felt Anya is more ready in that she has her brand (point of view) vs. still finding it.
Personally, I am ecstatic that Anya one for I consider her work more relevant for today ... easy, effortless ... but then that is what I am always drawn to ... and if not Anya, then Burt. ;-)